import {
  Card,
  Breadcrumb,
  Form,
  Button,
  Radio,
  Input,
  Upload,
  Space,
  Select,
  message
} from 'antd'
import { PlusOutlined } from '@ant-design/icons'
import { Link, useSearchParams } from 'react-router-dom'
import ReactQuill from 'react-quill'
import 'react-quill/dist/quill.snow.css'
import './index.scss'
import { useEffect, useState } from 'react'
import {createArticleApi, getArticleById,updateArticleApi} from '@/apis/article'
import { useChannel } from '@/hooks/useChannel'

const { Option } = Select

const Publish = () => {
  //获取频道列表
  const {channelList} = useChannel()

  //提交表单
  const onFinish = (formValue) =>{
    console.log(formValue);
    //校验封面类型是否和实际图片列表imageList数量相等的
    if(imageList.length !== imageType) return message.warning('封面类型和图片数量不匹配')
    //1.按照接口文档的格式处理收集到的表单数据
    const {title,content,channel_id} = formValue
    const reqData = {
      title,
      content,
      cover:{
        type:imageType,
        //这里的url的处理逻辑只是新增审核的逻辑
        images:imageList.map(item=>{
          if(item.response){
            return item.response.data.url
          }else {
            return item.url
          }
        }),//图片列表
      },
      channel_id
    }
    //2.调用接口提交
    //调用不同的接口  新增--新增接口  编辑状态--更新状态
    if(articleId){
      updateArticleApi({...reqData,id:articleId})
    }else {
      createArticleApi(reqData)
    }

  }

  //上传回调
  const [imageList,setImageList] = useState([])
  const onUploadChange = (value) =>{
    console.log(value);
    setImageList(value.fileList)
  }


  //切换图片封面类型
  const [imageType,setImageType] = useState(0)
  const onTypeChange = (e) => {
    setImageType(e.target.value)
  }

  // 回填数据
  const [searchParams] = useSearchParams()
  const articleId = searchParams.get('id')
  // 获取实例
  const [form] = Form.useForm()
  useEffect(() => {
    // 1. 通过id获取数据
    async function getArticleDetail () {
      const res = await getArticleById(articleId)
      const data = res.data
      const { cover } = data
      form.setFieldsValue({
        ...data,
        type: cover.type
      })
      // 为什么现在的写法无法回填封面？
      // 数据结构的问题  set方法 -> { type: 3 }   { cover: { type: 3}}

      // 回填图片列表
      setImageType(cover.type)
      // 显示图片({url:url})
      setImageList(cover.images.map(url => {
        return { url }
      }))
    }
    // 只有有id的时候才能调用此函数回填
    if (articleId) {
      getArticleDetail()
    }
    // 2. 调用实例方法 完成回填
  }, [articleId, form])

  
  return (
    <div className="publish">
      <Card
        title={
          <Breadcrumb items={[
            { title: <Link to={'/'}>首页</Link> },
            { title: articleId ? '编辑文章' : '发布文章' },
          ]}
          />
        }
      >
        <Form
          labelCol={{ span: 4 }}
          wrapperCol={{ span: 16 }}
          initialValues={{ type: 0 }}
          onFinish={onFinish}
          form={form}
        >
          <Form.Item
            label="标题"
            name="title"
            rules={[{ required: true, message: '请输入文章标题' }]}
          >
            <Input placeholder="请输入文章标题" style={{ width: 400 }} />
          </Form.Item>
          <Form.Item
            label="频道"
            name="channel_id"
            rules={[{ required: true, message: '请选择文章频道' }]}
          >
            <Select placeholder="请选择文章频道" style={{ width: 400 }}>
              {channelList.map(item => <Option key={item.id} value={item.id}>{item.name}</Option>)}
            </Select>
          </Form.Item>
          <Form.Item label="封面">
          <Form.Item name="type">
            <Radio.Group onChange={onTypeChange}>
              <Radio value={1}>单图</Radio>
              <Radio value={3}>三图</Radio>
              <Radio value={0}>无图</Radio>
            </Radio.Group>
          </Form.Item>
          {imageType > 0 && <Upload
            name="image"
            listType="picture-card"
            showUploadList
            action={'http://geek.itheima.net/v1_0/upload'}
            onChange={onUploadChange}
            maxCount={imageType}
            fileList={imageList}
          >
            <div style={{ marginTop: 8 }}>
              <PlusOutlined />
            </div>
          </Upload>}
          
        </Form.Item>
          <Form.Item
            label="内容"
            name="content"
            rules={[{ required: true, message: '请输入文章内容' }]}
          >
            {/* 富文本编辑器 */}
            <ReactQuill
              className="publish-quill"
              theme="snow"
              placeholder="请输入文章内容"
            />
          </Form.Item>

          <Form.Item wrapperCol={{ offset: 4 }}>
            <Space>
              <Button size="large" type="primary" htmlType="submit">
                发布文章
              </Button>
            </Space>
          </Form.Item>
        </Form>
      </Card>
    </div>
  )
}

export default Publish